1) What month of manufacture are the 07 and 07.5 distinguished??

2) I can not find any where what kind of gears i have. I asked the salesman and we forgot after the test drive to look into it. I wanted 3.73 gears and hope i didnt get 4.11's. At 75 mph i am at 2,100-2,200 rpm's in sixth gear with my manual. I was hoping it would be a little better than that. I checked the sticker and it says nothing about the gears. only that it has a 11.5 rear end.

3) Can the silencer ring be taken out of the 6.7's?? Has any body been able to figure it out yet. Just wanted some imput before i open it up.

Thanks

 

3.7 gear only option with the high revving G56 manual.

 

good to know maybe she will work her way a little looser after she gets broke in. I think i only have 137 miles on it. Larger tires should also help out a little.